ADUM3223CRZ-RL7

ADuM3223CRZ-RL7 is Analog Devices’ 4-channel digital isolator with IsoPower (iCoupler technology). It transfers digital signals across a galvanic isolation barrier between two supply domains, while optionally providing isolated power to the secondary side. Designed for interfaces such as SPI, I2C, and UART between a microcontroller and an isolated domain (sensors, motor drives, PLCs, etc.), it supports bidirectional data paths and operates from separate VDD1 and VDD2 rails. The CRZ suffix denotes a RoHS-compliant package, and RL7 indicates tape-and-reel packaging on a 7-inch reel. For exact electrical specs (data rate, propagation delay, voltage ranges, and isolation rating), refer to the ADuM3223 datasheet and evaluation board documentation.

There isn’t a direct one-to-one cross reference for ADUM3223CRZ-RL7. Closest equivalents are other 3-channel digital isolators with similar rails and speeds. Examples:
- Analog Devices: ADuM3220 / ADuM3221 (same iCoupler family)
- TI: ISO773x / ISO774x 3-channel isolates
- Renesas: ISL-series 3-channel isolators
- Broadcom/Avago: HCPL-7800 / 7802 (3-channel digital isolates)
Always verify channel count, voltage rails, and isolation voltage for an exact replacement.

ADuM3223CRZ-RL7 is a 3-channel digital isolator with an isoSPI interface. Key features:
- Three isolated data channels for isoSPI/SPI across the barrier
- 2.5 kV rms galvanic isolation between sides
- Independent VDD1 and VDD2 supply rails
- IsoSPI-compatible master/slave communication across isolation
- 8‑lead CRZ-RL7 RoHS package
- Wide operating temperature: typically -40°C to +125°C
- Low power consumption with fast data transfer
Designed for isolated SPI buses in industrial, automotive, and sensor applications.

- Pin count: 16 pins (SOIC/DIP family variant).
- Function: ADuM3223CRZ-RL7 is a 3-channel digital isolator with galvanic isolation between its two sides, providing three uni-directional data paths for isolated signal transfer (e.g., MCU to an RS-232/RS-485 transceiver). RL7 denotes tape-and-reel packaging.

- Manufacturer: Analog Devices, Inc. (Analog Devices).
- What kind of company: A multinational American semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing (DSP) integrated circuits, sensors, and related products for automotive, industrial, communications, computer, and consumer markets.

ADUM3223CRZ-RL7 is a 3-channel digital isolator used to galvanically isolate a microcontroller/SoC from external peripherals and high-voltage domains. Common applications include:
- Industrial automation (PLCs, motor drives, isolated I/O)
- Automotive and powertrain control
- Medical equipment requiring patient isolation
- Data acquisition and instrumentation (DAQ, test benches)
- Distributed control and remote sensing (I2C/SPI/UART isolation)
- Power electronics, motor control, inverters, power supplies, smart grid equipment
Any system needing EMI reduction and protection from high-voltage or noisy domains.

CRZ denotes a 16‑lead SOIC (N‑16) package. RL7 indicates RoHS lead-free, tape & reel packaging.